U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
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State directory

Wisconsin ZIP Codes

Complete postal directory, details, and geographic map for the State of Wisconsin.

State ZIP Code City County Area Codes
WI 53060 Newburg Washington County 262
WI 53061 New Holstein Calumet County 920
WI 53062 New Holstein Calumet County 920
WI 53063 Newton Manitowoc County 920
WI 53064 North Lake Waukesha County 262
WI 53065 Oakfield Fond du Lac County 920
WI 53066 Oconomowoc Waukesha County 262, 920
WI 53069 Okauchee Waukesha County 262
WI 53070 Oostburg Sheboygan County 920
WI 53072 Pewaukee Waukesha County 262
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.